20" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper this floor register seamlessly combines

this floor register seamlessly combines durability and design

Designed for both wall and ceiling applications

+ Product Details Size - 14"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 17 3/4"w x 17 3/4" x 1"

20" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Fixed Blades with Damper this floor register seamlessly combines+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 75" x 29. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum